First note consistently louder than the rest

I'm currently using Hydrogen (0.9.6-beta-1) on my Macbook (OSX 10.9.5). Whenever I start recording any new pattern, the first note played is consistently louder than the rest. Velocity is at the default levels. Any idea why this might be happening? I'd rather not have to manually change the velocity for each of these notes. Thanks ahead of time for the time and attention!